High-performance ferrocement laminate (HPFL) reinforcement layer bond slip test device and method

Abstract

The invention discloses a high-performance ferrocement laminate (HPFL) reinforcement layer bond slip test device and method. The HPFL reinforcement layer bond slip test device comprises a test bottom plate, a lower top plate, a middle top plate, an upper top plate, a strain test instrument, a load sensor, a data acquisition instrument and a host computer. The method comprises the following steps of: laying bearing bars of the reinforcement layer on an original test piece to form an HPFL reinforcement layer; making the test bottom plate; making and fixing the lower top plate; making and fixing the middle top plate; making the upper top plate and clamping the upper top plate in a slideway; arranging the original test piece between the lower top plate and the middle top plate; placing a jack on the top of the middle top plate; mounting the load sensor on the top of the jack; fixing the bearing bars of the reinforcement layer and the upper top plate; connecting the strain test instrument, the load sensor, the data acquisition instrument and the host computer; and acquiring, processing and displaying the bond slip performance of the HPFL reinforcement layer. The HPFL reinforcement layer bond slip test device and method have the advantages of reasonable design, high intelligent degree, convenience in operation, safe and reliable test process and high practical value.

Description

technical field [0001] The invention relates to the technical field of civil engineering testing methods, in particular to a device and method for testing bond-slip of an HPFL reinforced layer. Background technique [0002] Reinforced high-performance mortar reinforcement technology (HPFL reinforcement technology) is a new type of reinforcement technology that has emerged in recent years. This technology is to spread steel mesh, steel wire mesh, steel strand mesh and other stress-bearing materials on the surface of concrete members, and then use expansion bolts to anchor. On the component, make it form a whole and work together, and finally put on high-performance mortar as a protective layer to improve the structural bearing capacity and durability of a reinforcement method. At present, this reinforcement technology has been more and more widely used in civil engineering fields such as building structures and bridges. The test and actual use found that the early peeling fa...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the high-performance mortar reinforcement layer, the reinforcement layer is thicker and the shape of the failure surface is complex, the strain gauge measurement cannot meet the experimental requirements at all, and the dynamics and statics are large during loading and damage, which is easy to cause damage to the test equipment, and the loading system requires individually designed

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